Add basic synchronous logic outline.

tex/physicalHDL.tex

@@ -70,15 +70,7 @@ \part{Connecting the Dots}
 \label{PART:SYS}
 
 \include{async/async}
-
-\chapter{Synchronous Logic}
-\section{Flip Flops}
-\section{Counters}
-\subsection{Binary}
-\subsection{Ring}
-\subsection{Gray}
-\section{Shift Registers}
-\subsection{Linear Feedback Shift Register}
+\include{sync/sync}
 
 \chapter{Integer Arithmetic}
 \section{Adder}

tex/sync/sync.tex

@@ -0,0 +1,34 @@
+% Copyright (C) 2012, Shawn Tan <shawn.tan@sybreon.com>
+% Permission is granted to copy, distribute and/or modify this document
+% under the terms of the GNU Free Documentation License, Version 1.3
+% or any later version published by the Free Software Foundation;
+% with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+% A copy of the license is included in the section entitled "GNU
+% Free Documentation License".
+
+\chapter{Synchronous Logic}
+
+Synchronous logic is the bedrock of almost all modern digital systems.
+Everything that happens withing such a system is synchronised to a clock.
+
+\section{Flip Flops}
+
+The basic circuit element of a synchronous logic system is a flip-flop.
+A flip-flop is a device that will only change its output state in relation to a clock trigger.
+
+\subsection{Basic Flip Flop}
+
+% DFF
+% DFF into a TFF/JKFF
+
+\subsection{Clock Enable}
+\subsection{Synchronous Reset}
+\subsection{Asynchronous Reset}
+\subsection{Reset \& Clock Enable}
+
+\section{Counters}
+\subsection{Binary}
+\subsection{Ring}
+\subsection{Gray}
+\section{Shift Registers}
+\subsection{Linear Feedback Shift Register}